Event: John Cutting Trophy

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Opponent	Rating	Result
Masha Visel	1285	1 - 0
Paul Verrall	1414	0 - 1
Jasper Jeffs	1751

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1350 = (2699 + 400 * (1 - 1)) / 2)